应用层组播中用户自私性研究
发布时间：2018-11-27 21:09
【摘要】：应用层组播技术是传统组播技术在应用层的拓展,以个人计算机等设备为传输和通信的终端,有效地隔离了IP组播在技术和安全层面带来的不足。但是以往的组播协议在用户自私性问题方面的研究仍然有许多不足的地方,本文则针对此问题进行了研究。本文通过三方面的工作对于组播协议中用户自私性问题进行了研究,旨在有效地降低组播中用户自私行为的概率。首先采用树-网混合结构来进行组播树的构建,此模型将树和网状形状相结合,同时采用动态传输机制有效的避免控制开销的过度增加;其次结合树网混合模型给出了综合考虑各种网络参数的综合传输算法;最后将市场机制引入到了组播协议当中,使得节点之间的无偿数据传输变为有偿传输。本文通过以上三方面的工作来控制自私行为产生的概率。论文最后通过Myns进行仿真,验证了该模型可达到预期的目标,有效地降低了组播协议中用户自私行为发生的概率。
[Abstract]:Application layer multicast (ALM) is an extension of traditional multicast technology in the application layer. It uses personal computer and other devices as the transmission and communication terminal, effectively isolating the shortcomings of IP multicast in the technical and security aspects. However, previous researches on user selfishness still have many shortcomings. In this paper, the problem of user selfishness in multicast protocol is studied in three aspects in order to effectively reduce the probability of user selfishness in multicast. Firstly, the tree network structure is used to construct the multicast tree. The model combines the tree with the mesh shape, and the dynamic transmission mechanism is used to effectively avoid the excessive increase of control overhead. Secondly, combined with the tree network hybrid model, a comprehensive transmission algorithm considering various network parameters is given. Finally, the market mechanism is introduced into the multicast protocol, which makes the free data transmission between nodes become paid transmission. In this paper, we control the probability of selfish behavior through the above three aspects of work. Finally, the Myns simulation shows that the proposed model can achieve the desired goal and reduce the probability of user selfishness in multicast protocol.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP393.03
本文编号：2362046
[Abstract]:Application layer multicast (ALM) is an extension of traditional multicast technology in the application layer. It uses personal computer and other devices as the transmission and communication terminal, effectively isolating the shortcomings of IP multicast in the technical and security aspects. However, previous researches on user selfishness still have many shortcomings. In this paper, the problem of user selfishness in multicast protocol is studied in three aspects in order to effectively reduce the probability of user selfishness in multicast. Firstly, the tree network structure is used to construct the multicast tree. The model combines the tree with the mesh shape, and the dynamic transmission mechanism is used to effectively avoid the excessive increase of control overhead. Secondly, combined with the tree network hybrid model, a comprehensive transmission algorithm considering various network parameters is given. Finally, the market mechanism is introduced into the multicast protocol, which makes the free data transmission between nodes become paid transmission. In this paper, we control the probability of selfish behavior through the above three aspects of work. Finally, the Myns simulation shows that the proposed model can achieve the desired goal and reduce the probability of user selfishness in multicast protocol.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP393.03
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